<template>
	<popup-bottom :show="show" @close="closeSkuBox">
		<view class="sku-box">
				<view class="sku-header container">
					<image class="goods-img" :src="info.image[0].url"></image>
					<view class="sku-goods-info">
						<view class="money" :style="{color:themeColor}">
							<text class="symbol fs-26">￥</text>
							<text class="amount fs-38">{{info.price | toFixed2}}</text>
						</view>
						<view class="stock fs-24">
							库存{{info.stock}}件
						</view>
						<view class="fs-24">
							{{info.goodsName}}
						</view>
					</view>
				</view>
				<view class="sku-item container count">
					<view class="sku-name">数量</view>
					<view class="count-box">
						<text class="minus" :class="{disabled:buyCount<=1}" @click="handleBuyCount('minus')">-</text>
						<input class="count-content" v-model="buyCount" :disabled="true"/>
						<text class="add" :class="{disabled:buyCount>=info.stock}" @click="handleBuyCount('add')">+</text>
					</view>
				</view>
				<view class="confirm-btn-box">
					<view class="confirm-btn container" :class="{disabled:buyCount>=info.stock}" :style="{backgroundColor:themeColor}" @click="handleConfirm">确定</view>
				</view>
			</view>
	</popup-bottom>
</template>

<script>
	import PopupBottom from './popup-bottom'
	export default {
		components:{
			PopupBottom
		},
		filters: {
			toFixed2: function (value) {
			  if(!value) return '0.00'
			  return Number(value).toFixed(2)
			}
		},
		props: {
			info: {
				type: Object,
				default: function() {
					return {}
				}
			},
			show: {
				type: Boolean,
				default: false
			},
			themeColor: {
				type: String,
				default: '#1ac792'
			},
		},
		data() {
			return {
				buyCount: 1,
				borderWidth: uni.upx2px(2),
			}
		},
		methods: {
			handleBuyCount(type) {
				if(type === 'minus') {
					if(this.buyCount <= 1) return
					this.buyCount = this.buyCount*1 - 1
				}
				if(type === 'add') {
					if(this.buyCount >= this.info.stock) return
					this.buyCount = this.buyCount*1 + 1
				}
			},
			closeSkuBox() {
				this.$emit('close')
			},
			handleConfirm() {
				const result = this.info
				result.count = this.buyCount*1
				this.$emit('confirm', result)
			}
		}
	}
</script>

<style lang="scss" scoped>
	.flex-center {
		display: flex;
		align-items: center;
	}

	.flex-center-center {
		display: flex;
		justify-content: center;
		align-items: center;
	}

	$font-color-light: #999999;
	$page-bg-color-grey: #f5f5f5;

	.fs-24 {
		font-size: 24upx;
	}

	.fs-26 {
		font-size: 26upx;
	}

	.fs-38 {
		font-size: 38upx;
	}

	.container {
		width: 690upx;
		margin: 0 auto;
	}

	.sku-box {
		min-height: 500upx;
		background-color: white;
		padding-bottom: 20upx;
		font-size: 28upx;
		color: #333333;
		position: relative;
		.sku-header {
			display: flex;
			padding: 40upx 0 20upx;
			.goods-img {
				width: 200upx;
				height: 200upx;
				border-radius: 6upx;
				border: 4upx solid white;
				flex: none;
				margin-top: -80upx;
			}
		}
		.sku-goods-info {
			margin-left: 20upx;
			.money {
				border: none;
				padding-bottom: 0;
			}
			.stock {
				color: $font-color-light;
			}
		}
		.sku-list {
			max-height: 100upx;
		}
		.sku-item {
			padding: 16upx 0;
			.sku-name {
				font-size: 30upx;
			}
			.sku-content {
				border-bottom: 2upx solid $page-bg-color-grey;
				padding: 20upx 0;
				@extend .flex-center;
				flex-wrap: wrap;
				.sku-content-item {
					padding: 16upx 20upx;
					border-radius: 6upx;
					margin: 0 30upx 20upx 0;
					border: 2upx solid transparent;
				}
			}
			&.count {
				@extend .flex-center;
				justify-content: space-between;
				.count-box {
					@extend .flex-center;
					text,.count-content {
						@extend .flex-center-center;
						width: 70upx;
						height: 70upx;
						font-size: 32upx;
						border: 2upx solid $page-bg-color-grey;
					}
					.add,.minus {
						font-size: 44upx;
					}
					.count-content {
						border-width: 2upx 0;
						text-align: center;
					}
				}
			}
		}
		.confirm-btn-box {
			position: absolute;
			bottom: 16rpx;
			left: calc((100vw - 690rpx) / 2);
			padding-bottom: constant(safe-area-inset-bottom);     /*兼容 iOS<11.2*/
			padding-bottom: env(safe-area-inset-bottom);  /*兼容 iOS>11.2*/
			.confirm-btn {
				@extend .flex-center-center;
				height: 80upx;
				border-radius: 80upx;
				color: white;
				font-size: 32upx;
				margin-top: 10upx;
			}
		}
		
	}

	[class*=disabled] {
		color: $font-color-light;
		opacity: .7;
	}
</style>
